Disodium EDTA

Disodium EDTA (Disodium Dihydrogen Ethylenediaminetetraacetate, CAS 139-33-3 / 6381-92-6) is a chelating and viscosity-controlling ingredient widely used in cosmetic formulations. It works by neutralizing metal ions that typically enter formulas via water, which would otherwise cause undesirable changes to the product. It is typically used in very small amounts, around 0.1% or less.